Cargo Features

[dependencies]
spectacle = { version = "0.2.0", default-features = false, features = ["collections", "derive", "serde-json"] }
default = collections, derive

These default features are set whenever spectacle is added without default-features = false somewhere in the dependency tree.

collections default
derive default = spectacle-derive
serde-json = serde_json

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

serde_json serde-json?
spectacle-derive derive